| 化学沉淀法制备Mo-Ru钎料粉末的组织结构及钎焊性能研究 |
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| 引用本文： | 陈南光,庄滇湘,刘泽光,郑国伟,左杨,施宏宇,卢应孟,杨军. 化学沉淀法制备Mo-Ru钎料粉末的组织结构及钎焊性能研究[J]. 贵金属, 2024, 0(1): 23-27 |
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| 作者姓名： | 陈南光 庄滇湘 刘泽光 郑国伟 左杨 施宏宇 卢应孟 杨军 |
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| 作者单位： | 贵研化学材料云南有限公司，昆明 650106;云南省贵金属新材料控股集团股份有限公司，昆明 650106;昆明贵金属研究所，昆明 650106 |
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| 摘 要： | 采用水合三氯化钌和钼酸铵在红外灯下化学共沉淀反应、通氢还原制备Mo-Ru粉末钎料。利用扫描电镜、能谱仪、X射线衍射及差热分析等技术，研究粉末的形貌、成分、熔化温度、钎料与钼片、多孔钨的钎焊性能。结果表明:用化学沉淀法制备粉末大部分是MoRu化合物颗粒、少量Mo、Ru单质粉末及微量SiO2，粉末粒度D80≤6 μm，熔化后与钼片及阴极多孔钨基体浸润性良好，熔化温度为1959.7~1969.6 ℃，与相图上MoRu共晶钎料的熔化温度接近。
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| 关 键 词： | 金属材料；化学沉淀法；Mo-Ru钎料粉末；粉末粒度；显微组织；钎焊性能 |
| 收稿时间： | 2023-02-06 |
Microstructure and brazing performance of Mo-Ru alloyed powder prepared by hydrolysis-precipitation method |
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| CHEN Nanguang,ZHUANG Dianxiang,LIU Zeguang,ZHEN Guowei,ZUO Yang,SHI Honyu,LU Yingmeng,YANG Jun. Microstructure and brazing performance of Mo-Ru alloyed powder prepared by hydrolysis-precipitation method[J]. Precious Metals, 2024, 0(1): 23-27 |
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| Authors: | CHEN Nanguang ZHUANG Dianxiang LIU Zeguang ZHEN Guowei ZUO Yang SHI Honyu LU Yingmeng YANG Jun |
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| Affiliation: | Sino-Platinum Metals Chemical Yunnan Co.Ltd., Kunming 650106, China;Yunnan Precious Metal New MaterialHolding Group Co.Ltd., Kunming 650106, China;Kunming Institute of Precious Metals, Kunming 650106, China |
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| Abstract: | Mo-Ru alloyed powder was prepared from ruthenium chloride hydrate and ammonium molybdate by using hydrolysis-precipitation method, and then the powder was characterized by scanning electron microscope (SEM) and X-ray diffraction (XRD). The particle distribution, melting point and brazing performance were also measured. The results showed Mo-Ru powder was mainly made up of Mo-43Ru alloy but it also contained a small amount of unalloyed Mo and Ru as well as trace SiO2. The size distribution parameter D80 of Mo-Ru powder was determined to be ≤ 6 μm and good wetting was observed on Mo thin piece and W column. The melting temperature was 1959.7 to 1969.6 ℃，close to the value of the eutectic MoRu on the phase diagram. |
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| Keywords: | metal materials chemical hydrolysis precipitation method Mo-Ru powder brazing alloy powdersize microstructure brazing performance |
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